Place a disposable aluminum pan under grill rack on one side of grill. Spray girll rack with nonstick nonflammable cooking spray. Preheat other side of grill to medium heat (300 to 350 degree); leave drip pan side unlit.

In a medium bowl, combine pina colada mix, pineapple juice, and rum

Rub salt evenly over ribs. Place ribs, meaty side up, on unlit side of prepared grill rack, and grill, covered with grill lid, for 1 hour and and 30 minutes on each side, basting occasionally with pina colada mixture. Let ribs stand 10 minutes before serving. End